<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card class="box-card">
      <el-row>
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList">
            </el-button>
          </el-input>
        </el-col>
        <el-col :span="12">
          <el-button
            type="primary"
            class="seachBtn"
            @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表数据 -->
      <template>
        <el-table
          :data="userList"
          style="width: 100%"
          :border="true"
          :stripe="true"
        >
          <el-table-column type="index" label="序号"></el-table-column>
          <el-table-column prop="username" label="姓名" width="180">
          </el-table-column>
          <el-table-column prop="email" label="邮箱" width="180">
          </el-table-column>
          <el-table-column prop="mobile" label="电话"> </el-table-column>
          <el-table-column prop="role_name" label="角色"> </el-table-column>
          <el-table-column label="状态">
            <template slot-scope="scope">
              <el-switch
                v-model="scope.row.mg_state"
                active-color="#13ce66"
                inactive-color="#ff4949"
                @change="userStateChanged(scope.row)"
              >
              </el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="200px">
            <template slot-scope="scope">
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserById(scope.row.id)"
              ></el-button>
              <el-tooltip
                class="item"
                effect="dark"
                content="分配角色"
                placement="top-start"
                :enterable="false"
              >
                <el-button
                  type="warning"
                  icon="el-icon-setting"
                  size="mini"
                  @click="setRoles(scope.row)"
                ></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>

        <!-- 分页 -->
        <div class="block">
          <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[5, 10]"
            :page-size="queryInfo.pagesize"
            layout="sizes, prev, pager, next, jumper"
            :total="total"
          >
          </el-pagination>
        </div>
      </template>
      <!-- 添加用户对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
      >
        <!-- 内容主体区域 -->
        <el-form
          ref="addFormRef"
          :model="addForm"
          label-width="70px"
          :rules="addFromRules"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 修改用户对话框 -->
      <el-dialog
        title="修改用户信息"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
      >
        <el-form
          ref="editFormRef"
          :rules="editFormRules"
          :model="editForm"
          label-width="70px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" :disabled="true"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 分配角色对话框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setRolesdialogVisible"
        width="30%"
        @close="setRoleDialogClosed"
      >
        <p>当前用户：{{ userInfo.username }}</p>
        <p>当前角色:{{ userInfo.role_name }}</p>
        <!-- 下拉列表 -->
        <template>
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </template>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRolesdialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        pagesize: 5
      },
      userList: [],
      total: 0,
      // 添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 控制分配角色对话框的显示与隐藏
      setRolesdialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 角色列表
      rolesList: {},
      // 以选中的角色id值
      selectRoleId: '',
      // 添加表单的验证规则对象
      addFromRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名的长度在6~15字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      console.log(res)
      if (res.meta.status !== 200) {
        this.$message.error('获取用户列表失败')
      } else {
        this.userList = res.data.users
        this.total = res.data.total
      }
    },
    // 监听pagesize 改变的事件
    handleSizeChange(newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关的状态的改变
    async userStateChanged(userInfo) {
      console.log('用户信息', userInfo)
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      console.log(res)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      } else {
        this.$message.success('更新用户状态成功')
      }
    },
    // 监听关闭用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    addUser() {
      // 点击按钮，添加用户
      this.$refs.addFormRef.validate(async valid => {
        console.log(valid)
        if (valid) {
          // 发起添加用户的请求
          const { data: res } = await this.$http.post('users', this.addForm)
          console.log(res)
          if (res.meta.status === 201) {
            this.$message.success('添加用户成功')
            //  隐藏添加用户对话框
            this.addDialogVisible = false
            // 重新获取用户列表数据
            this.getUserList()
          } else {
            this.$message.error('添加用户失败')
          }
        } else {
          this.$message.error('请填写正确的信息')
        }
      })
    },
    // 点击显示修改用户对话框
    async showEditDialog(userId) {
      this.editDialogVisible = true
      console.log('用户id', userId)
      const { data: res } = await this.$http.get(`users/${userId}`)
      console.log(res)
      if (res.meta.status === 200) {
        this.editForm = res.data
      } else {
        this.$message.error('查询用户信息失败')
      }
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        console.log(valid)
        if (valid) {
          // 发起修改用户数据请求
          const { data: res } = await this.$http.put(
            `users/${this.editForm.id}`,
            {
              email: this.editForm.email,
              mobile: this.editForm.mobile
            }
          )
          console.log(res)
          if (res.meta.status === 200) {
            // 隐藏修改用户信息框
            this.editDialogVisible = false
            // 重新获取用户信息
            this.getUserList()
            // 提示用户修改成功
            this.$message.success('更新用户成功')
          } else {
            this.$message.error('更新用户信息失败')
          }
        } else {
          this.$message.error('请填写正确的信息')
        }
      })
    },
    // 根据id删除用户
    async removeUserById(userId) {
      const res = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => {
        return err
      })
      // 如果用户确认删除，则返回值为字符串confirm
      // 如果用户取消删除，则返回值为cancel
      if (res === 'confirm') {
        const { data: res } = await this.$http.delete(`users/${userId}`)
        console.log(res)
        if (res.meta.status === 200) {
          this.$message.success('删除成功')
          this.getUserList()
        } else {
          this.$message.error('删除失败')
        }
      } else if (res === 'cancel') {
        this.$message.info('取消删除')
      } else {
        this.$message.error('删除错误')
      }
      console.log(userId)
      console.log(res)
    },
    // 分配角色
    async setRoles(userInfo) {
      this.userInfo = userInfo
      console.log('111')
      // 展示对话框之前获取角色列表
      const { data: res } = await this.$http.get('roles')
      console.log(res)
      if (res.meta.status === 200) {
        this.rolesList = res.data
      } else {
        this.$message.error('获取角色列表失败')
      }
      this.setRolesdialogVisible = true
    },
    // 分配角色确定事件
    async saveRoleInfo() {
      if (!this.selectRoleId) {
        this.$message.error('请选择要分配的角色')
      } else {
        const { data: res } = await this.$http.put(
          `users/${this.userInfo.id}/role`,
          {
            rid: this.selectRoleId
          }
        )
        console.log(res)
        if (res.meta.status === 200) {
          this.$message.success('更新角色成功')
          this.getUserList()
          this.setRolesdialogVisible = false
        } else {
          this.$message.error('更新角色失败')
        }
      }
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectRoleId = ''
      this.userInfo = ''
    }
  }
}
</script>

<style scoped>
.seachBtn {
  margin-left: 20px;
}
</style>
